OBS CHEVY WHEEL & TIRE FITMENT: what fits & what doesn't (& what you might have to do to fix it) 

Bro. That truck is sick. Something about that grandpa brown 2 tone laid out on those fat wheels just looks so right. 👌

Same thing happened to me Robbie and my 98 also w a 5/8 static drop. Not knowing what we didn't know about back spacing we relied on a well known mail order company who drills blanks purposely not to rub and he guaranteed us there would be no rub WRONG front and back both rubbed and ruined a few tires in a short. Needless to say we ended up doing a roll job to get them to work which ended up fine. I just had them powder coated bronze chrome and all new Michelins 👍 good to go, thanks for all you do in the industry for us garage people, dig your channel.

Its awesome to have the information out there before you get too far into a project and realize you have to undo half of it. Before I did the 2/3 drop on my Dakota I must have done weeks of measuring, research etc. Came in knowing what wheels and what the maximum tire size I could via the forums too. The kits out there were a 2/4" drop with the rear hangers. But needed Pinion shims... It adds up quick both in parts cost and the amount of work needed. Knowing the added weight I have in the bed, Hard Tonneau, full size spare, some tools that 4" rear would be too much. Ive noticed more have said, 5/8 4/7 for the drops but are running on a 20"+ wheel. That in itself brings issues. I would have loved to drop mine on the Viper wheels but at $800+ each hell no, same bolt pattern, way different offset. It's a daily, not a show truck so I had to keep that in mind too.

Appreciate you taking the time to put this information out there. Definitely helped me out

Puddin always takes about how good those sweet patina wipes are and the amazing smell. And now you lol. Definitely gonna give these a try.

This whole truck is a learning process and I love it. We’re gonna learn all kinds of new tricks and tips with a build like this. Thanks Robbie

Good info! Truck is looking good sitting down a little more in the back.

Thank you for doing this video. For me, it has been a struggle finding info on wheel and tires fitment on the OBS trucks. I really enjoy your content.

Glad you made it through the process of making the tires not rub I think a lesser man would have given up and never finished and had a non driver sitting around thinking about what could have been!! Thanks for taking us along on this pain of a journey and showing it’s possible to get it done!!!!

badass can’t wait to see the finished product 🤘🏼

The truck looks good 👍👍

GMT400’s are my all time favorite body style that GM produced other than the square bodies. I miss my c1500 and my k1500. Had to scrap both of them(I live in the rust belt). I’ve been wanting to get another c1500 for a long time but now I want one even more so after watching the progress on this ‘88.

Have you ever thought about swapping in the 90’s Impala SS rearend? You get disc brakes also. I think they are 3” narrower. But you could run a 1” spacer on each side. Would be a cool low buck swap for the OBS guys and it keeps the 5x5 pattern.

I love learning this stuff!

Just ordered the TKO wipes and some tire black. Thanks for the code.

Dude!!! Great video!!! 4/6 on my 94 chev!!! Running 15×8 4-1/2inch black American racing spokes 255/60 had to role the front!!! I need to switch to react spindles!!!✌️

Excellent informative video and great info on the right tools to use to make the clean cuts. I have to say I don’t believe I could cut a mint truck like you did this one but if I did this a valuable video to take in on what not to do and what to do especially with the experts advice that was added in. Thanks for sharing

Great how to! I bought my '89 RCSB already lowered, so I missed out on the trials & tribulations you've endured! Truck looks great!!!

Good stuff!

Great video👍 do those offsets work with the stepsides or are they completely different? New to the OBSs. Thanks...

Great info, thank you

Morning, Robbie!!!

Damn I wish this was out 2 years ago when I ordered my wheels ! But great content truly appreciate the obs content on here and level 7

Great info, going to save me a headache!

Loooks good. Backspace is critical when you're going wide and the panhard rod is nice to have. I remember doing 295/35 18s on the back of a 4th gen Camaro back in '96 the stock panhard bar would flex and cause scrubbing, eventually went aftermakret which helped greatly. I've done a few builds with the upper end of max width.

I need this in my life.

What size spacer did you use to for the fender roller?

Been there played that. Wish I would of known could of told you. I use 4 inch grinder cut my lip out. Use a ft long 2x4 held to out side and use hammer to massage what's left flat.

Ya like your new tool!!???

Good morning. Enjoy your videos and have a question for you though. Any idea what a 94 chevy stepside would be worth-running 305 with less then 80,000 original miles. Tranny works. edge of front fenders are rusting away. Cab corners need to be replaced -hood -box-tailgate are good and interior is mint. Upstate NY. winters can be rough at times. Just wondering if you could let me know. I know hard with out pictures but was wondering was all. Thank you for any help and or advice! Have a good day

What size tires are on the rims ?

Need this video for a bagged square body laying frame

So what's next? Do up have to do anymore mods to get more tire clearance?

I 5,7 dropped a obs dually and had to roll front fender and take trim off..back cleared without any mods

What front/ rear brake setup on the black truck ?

🤙👍

Real.

I have a 99 OBS Dually that I'm planning to run on bags. Is there a "calculator" of some sort that I can use? I want it as low as possible without doing a body drop.

Good video I understand your struggle. Personally, it might be advisable to go ahead and have the mount flange on the rear wheels milled down just a bit.

What is the name and brand of the wheels you have on?

👊

No only do you need to make sure your bed is square, but also that your pan hard bar isn't pulling you diff to either side and is centered. Both mine are like your second cut, I haven't had to remove any of the inside lip that isn't stamped to the outer, so they are still joined slightly. I hope you get them to work, the wheels suit that body color, and it's only sheetmetal haha.

If one size it tighter than the other, you use the pan hard bar to center the axle...

That’s some nice fender roller in my day all I had to use was baseball bat to give the extra room for the tires to fit in the wheel well!!!

OR put a block of wood along the lip of wheel well and a bottle jack against the wheel tub (sideways) and push out. It will roll the lip and push the bedside out enough to clear.. don’t be stupid about it and it’ll work.

👍🏻

I would have took a flap disk and shaved it down that's what I did on my C10 worked great

You would have saved yourself a lot of headache by going with stretched tires. 275/35/20 on a 20x10 inch wheel would have been perfect. I run 275/35 on x10.5 wheels and it sit's perfect. Also rolling and pulling the fenders would have helped

Use a cutoff tool to cut the lip instead of dremel.

Flap disk on a grinder will clean up that lip SO quick...

Definitely would've had the inner hubs milled if there's enough material. That would've pulled those wheels in a good 1/2" and allow you to keep your fender lip spot welds intact. You're gonna need Mike to patch that driver's side cut up. You definitely don't want that open like that.

I would have knock down wheel back pad first

I feel like stonefab arms and SloshTubz would fix all this on the front

A square body axle would solve the problem.

Id weld those lips up so you dont have rust issues in the future

275 60 15s on square body rally wheels always win in the wheel department

Before you butcher the the body… buy the right spec wheels. 🙄

Those wheels are too sunken in..I have a 93 c1500 and I did 18x10 rocket racing wheels squared. Perfect fitment. 295/35/18 tires squared.